Device for fixing the canvas of a rug during fabrication

ABSTRACT

The device for holding a mesh-type backing fabric on a table top includes a plate having a plurality of upstanding pins on one surface thereof. The undersurface of the plate is provided with a flange which raises the plate off the surface of the table and two parallel through slots are provided on opposite edges of the plate to facilitate the passage of a strap therethrough. The strap may pass entirely around the surface of the table to secure the plate firmly on the surface of the table.

United States Patent Chretin 1451 A r. 25 I97 [541 DEVICE FOR FIXING THECANVAS OF 1,173,760 2/1916 Williams ..269/54 A RUG DURING FABRICATION1,619,940 3/1927 Kaplan ..269/54 2,006,074 6/1935 Kni ht et al. ..269/53[72] Inventor: .(l)ealrl Chll':etin, 2 [718 rue Francique Jomard,3,167,041 H1965 Briggs I l "Hz/12L u "1 3,342,478 9/1967 Shaw et al...269/309 x [22] Filed: Dec. 11, 1969 3,504,829 4/l970 Smakel ..269/53 X[21] AppliNo': 884u5 Primary Examiner-Frank T. Yost I iAttorney-Sughrue, Rothwell, Mion, Zinn & Macpeak [30] Foreign Appication Pr ority Data May 12, 1969 France .1. ..6914876 [571 ABSTRACTThe device for holding a mesh-type backing fabric on a table US."269/54, top includes a plate having a plurality of upstanding pins on[51] 1- Cl 3/00 one surface thereof. The undersurface of the plate isprovided [58] Field of Search ..269/47, 53, 54, 289, 309; w a flangewhich raises the plate ff the Surface f the table 1 12/80 260 and twoparallel through slots are provided on opposite edges of the plate tofacilitate the passage of a strap therethrough. 56] References Cited Thestrap may pass entirely around the surface of the table to UNlTED STATEST N secure the plate firmly on the surface of the table. 154,694 9/18746 Claims, 11 Drawing Figures Martin ..269/53 PATENTED APR 2 5 m2 SHEET10F 2 DEVICE FOR FIXING THE CANVAS OF A RUG DURING FABRICATION Thepresent invention relates to a device designed to immobilise the canvasof a rug during manufacture.

It is a known technique to make thick pile rugs with knotted stitches.To dotliis, the operator places a canvas on a table and by means of alatchet hook he engages the pieces of wool, already cut to length, inthe mesh of the canvas and knots them on each stitch of the mesh. Sincethe operator is seated at his work-table, the already completed portionof the rug (that is to say, the heavier part) rests on his knees, whilstthe table carries the bare canvas (that is to say the lighter part). In

practice, it is found that the heavy part drags by its weight thelighter part which tends to slide on the table. This should be avoidedif possible, because the different prepared lengths of wool arrangedaccording to the design of the rug are often waiting on the bare part ofthe canvas, and it is important not to mix them.

To prevent the rug falling the operator is obliged to have recourse tochance methods. Some people grip it by means of clips which spoil theedge of the table top.

The present invention has the aim of avoiding these disadvantages byproviding', a cheap device which is very simple to use and ensuresfixing of the canvas without spoiling the table.

The fixing device according to the invention is characterised in that itcomprises at least one plate, the upper face of which is provided withfingers of which the diameter and the distribution correspond to thecharacteristics of the mesh of the canvas to be treated, means beingprovided in addition on two opposite edges of this plate for fixing astrap able to be buckled around the table top or any other known similarsupport.

Following a preferred method of manufacture of the invention, the plateis made as a monolithic plastics injection moulding.

According to another preferred feature of the invention, the means offixing the strap are constituted by two parallel slots in the middleoftwo opposite edges of the plate, which allow an endless strap to beengaged in them, the strap passing underneath the plate between the twoslots, whilst the strap is above the plate on each side of the slots.Hence the tension of the strap itself helps to hold the plate on thetable.

In practical use, it is of advantage to use two devices of the abovetype simultaneously. In fact, with a single plate of small dimensions,the bulk of the canvas may have a tendency to turn around the point ofattachment to the strap. On the other hand, if a plate of largedimensions is made, there is a risk of some of the fingers being out ofline with the mesh of the canvas, since the regularity of thedistribution of these meshes has fairly large tolerances. It istherefore preferable to use two plates of small dimensionssimultaneously each one fixed by its own strap, and to use them toimmobilise the two sides of the canvas.

Finally, if the canvas has a tendency to ruckup, it is possible to avoidits becoming unfastened by fitting behind it a further plate perforatedin such a manner that its holes engage on the fingers of the firstplate.

The invention will be better understood by reference to the followingexamples described with reference to the accompanying drawings, inwhich:

FIG. 1 is a plan view of the upper surface of a plate according to theinvention,

FIG. 2 shows the under surface of this plate in perspective,

FIGS. 3 and 4 are respectively sections along III III and IV IV in FIG.1,

FIG. 5 is a view in perspective showing the fitting of two devices sideby side on the same table top,

FIG. 6 is a schematic part section of a canvas, showing the making of aknotted stitch,

FIG. 7 is a part section in perspective showing the engagement of thefingers of the plate in the mesh of the canvas,

FIG. 8 is an overall view of a rug in process of being made, its canvasbeing held by a pair of devices according to the invention,

FIG. 9 shows a variant in which a second plate is provided to fit on thefirst plate, trapping the threads of the canvas between the plates,

FIG. 10 is a transverse section of this variant, after the plates areassembled, and

FIG. 11 shows in perspective the assembly of FIG. 10 in the workingposition.

There is shown in FIGS. 1 to 4 a plate made in one piece as a plasticsinjection moulding. This plate comprises a body 1 made inthe form of along rectangle with rounded comers. From the upper face of the body 1project teeth, points or fingers 2 arranged in staggered rows, forexample, according to the apertures of a fabric with a square mesh.

The rectangular body 1 comprises two long opposite sides 3 in each ofwhich, near to the middle of the side, is cut a slot 4. The two slots 4are parallel to each other and they preferably open under the plate byoblique faces 5. In addition, between the two slots 4, the lower face 6of the body I is recessed in relation to the lower face 7 of the mainpart of the body I, to a depth 8 (FIG. 4) equal to the thickness of astrap 9. Thus, by using a strap 9 of known type, of a width equal to thelength of the slots 4, it is possible to pass this strap 9 through thebody 1 following the path shown schematically in FIG. 4 by the brokenline 10.

The operation is as follows:

The operator preferably uses two devices of the kind which has just beendescribed. I-Ie places them side by side on a table top 11 and hebuckles the two straps 9 around this top. Thus the plates 1 2 arearranged in line with one another, held on to the table top 11. Then, itis only necessary to fit on to the assembly of the two plates a canvas12 of known type, the mesh of which will fit around the teeth or fingers2 of the bodies 1. (FIGS. 7 and 8). By means of a latchet hook 13 ofknown type the operator knots pieces of wool 14 previously cut to length(FIG. 6) on to the threads of the canvas 12. In doing this, the operatorpulls firmly on the canvas 12. This pull, together with the effect ofthe weight of the part 15 of the rug which is already completed, tendsto make the whole canvas fall on to the knees of the operator, thecanvas 12 sliding in the direction of the arrow 16. It will beunderstood that the plates 1, 2 according to the invention, oppose thissliding and hold the canvas 12 firmlyin place. When the making of therug has progressed sufficiently, it is only necessary to pull the canvas12 from the fingers 2 and apply it again in a different place.

It will be seen that the use of these devices in no way damages thetable top, unlike certain clips of known type.

In certain cases, it may happen that the canvas has a tendency to ruckup. For this, a variant according to the invention enables it to betrapped between two plates (FIGS. 9 to 11). The first plate I, is of thetype already described and is held by straps 9. The second plate 17 ismade in a similar shape, but it is perforated by holes 18 each of whichis able to fit on to the top of a finger 2 of the first plate. Ifnecessary, the fingers 2 may be given bulbous tops 19 to hold the plate17 clipped on by elasticity.

Thus it is only necessary to cap the assembly already described (FIG. 8)with a plate 17 on each plate I, 2 to trap the canvas 12 and hold itfirmly in place (FIGS. 10 and II).

I claim: 1

l. A device for clamping a rug canvas to a table during manufacture of arug, comprising a plate said plate having fingers projecting upwardlyfrom its top surface, said fingers corresponding in distribution to thecharacteristics of the mesh of said canvas, means being provided on twoopposite sides of said plate for anchoring a flexible fastening devicecapable of being buckled around a table top.

2. A device in accordance with claim 1, wherein said plate and saidfingers are made as a monolithic plastics injection moulding.

3. A device in accordance with claim 1, wherein said means for anchoringsaid flexible fastening device is formed by said plate defining twoparallel slots arranged one near to each of two opposite sides of saidplate.

4. A device according to claim 3, wherein the underside of said plate isrecessed between said slots.

5. A device according to claim 1, further comprising a second platepreforated with holes which have diameters and a distributioncorresponding to the diameter and distribution 5 of said fingers.

6. A device according to claim 5, wherein the extremities of saidfingers are bulbous.

1. A device for clamping a rug canvas to a table during manufacture of arug, comprising a plate said plate having fingers projecting upwardlyfrom its top surface, said fingers corresponding in distribution to thecharacteristics of the mesh of said canvas, means being provided on twoopposite sides of said plate for anchoring a flexible fastening devicecapable of being buckled around a table top.
 2. A device in accordancewith claim 1, wherein said plate and said fingers are made as amonolithic plastics injection moulding.
 3. A device in accordance withclaim 1, wherein said means for anchoring said flexible fastening deviceis formed by said plate defining two parallel slots arranged one near toeach of two opposite sides of said plate.
 4. A device according to claim3, wherein the underside of said plate is recessed between said slots.5. A device according to claim 1, further comprising a second platepreforated with holes which have diameters and a distributioncorresponding to the diameter and distribution of said fingers.
 6. Adevice according to claim 5, wherein the extremities of said fingers arebulbous.